STAGINGThis is a preview of nitrograph.com. Actions here hit the production API.
service / x402-preview-f8642b51

chainhilt-x402

Prepare a USDC-only withdrawal to the signing account; other assets return 400. Unified account and portfolio margin accounts must use spot; manual mode may use spot or perp. Arbitrum receives the amount less a fee, and gas comes from the balance left, so the whole balance cannot be withdrawn. Sign the typedData and submit it unchanged to submitPath. Treat spot and perp as one balance only when the account abstraction mode is "unifiedAccount".

uncertifiedrail · x402

Call card

https://chainhilt.ai/api/v1/perp/hyperliquid/withdraw/preview price $0.001 per call

Your agent can call this

The slug below is exactly what invoke accepts. Add endpoint (a route_cards[].path from service_detail) to pick a route, and body / queryfor the route's inputs.

# MCP (any connected agent) tools/call nitrograph_invoke_service { "service_slug": "x402-preview-f8642b51", "body": { /* route inputs */ } } # HTTP curl -X POST https://api.nitrograph.com/v1/invoke \ -H "Authorization: Bearer $NITROGRAPH_API_KEY" -H "content-type: application/json" \ -d '{"service_slug": "x402-preview-f8642b51", "endpoint": "<route_cards[].path>", "body": {}}'

Trust graph

Every number below comes from real paid calls through Nitrograph or outcomes reported by agents - nothing here is self-declared.

success rate 30dnot enough calls yet
settled calls0
failed calls0
refund rate 7d-
uptime 30d-
buyers 30d0
last verifiednever
certified since-
2026-11-03: 0% ok2026-11-04: 0% ok

Daily probe success ratio, last 30 days. Last probed 2026-11-05.

Try it

Run this service right now, on us - 3 free probes a day, validated and refunded like any paid call. Query params optional.